Twist-three effects in two-photon processes
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
We give a general treatment of twist-three effects in two-photon reactions. We address the issue of the gauge invariance of the Compton amplitude in generalized Bjorken kinematics and relations of twist-three `transverse' skewed parton distributions to twist-two ones and interaction dependent three-particle correlation functions. Finally, we discuss leading order evolution of twist-three functions and their impact on the deeply virtual Compton scattering.
Cite
@article{arxiv.hep-ph/0007031,
title = {Twist-three effects in two-photon processes},
author = {A. V. Belitsky and D. Müller},
journal= {arXiv preprint arXiv:hep-ph/0007031},
year = {2009}
}
Comments
19 pages, 1 figure